Permissions:
craftpolls.create - Create new polls
craftpolls.delete - Delete polls
craftpolls.reset - Reset polls
craftpolls.open - Open polls
craftpolls.addOption - Add new options to poll (up to 5)
craftpolls.removeOption - Remove options from poll
craftpolls.setMaterial - Manage poll materials
craftpolls.results - Print results to chat
craftpolls.vote - Vote on poll
craftpolls.voteMultiple - Vote multiple times on poll

Also all commands (not open) can be ran from console to manage polls remotely.

In locales.yml you can set messages that sent to player.